U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 422/48 - Membrane


Subclass of Class 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
Definition: Apparatus wherein a membrane (e.g., semipermeable microporous,
No. of patents: 255
Last issue date: 10/14/2008


1              
NumberTitleIssue Date
7435342Dialysate regeneration system for portable human dialysis
A dialysate regeneration chamber is provided. In one embodiment, the dialysate regeneration chamber may include a toxin trap configured to selectively trap toxins and repel select cations. ...
10/14/2008
7431754Artificial lung
An artificial lung includes a housing, a tubular hollow fiber membrane bundle contained in the housing and providing a multiplicity of hollow fiber membranes having a gas exchange function, a gas inflow port and a gas outflow port communicating with each other throu...
10/07/2008
7399717Oxygen generation in whole blood by photolytic activation
Apparatus and methods for photolytic oxygenation of whole blood. ...
07/15/2008
7347849Modular medical treatment replaceable component
A first flow path is defined within a first panel that forms a part of an extracorporeal fluid circuit. A second flow path is defined within a second panel that also forms a part of the extracorporeal fluid circuit. The first and second panels are oriented in a flui...
03/25/2008
7335334Active air removal from an extracorporeal blood circuit
A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous...
02/26/2008
7294278Method for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
11/13/2007
7291122Hemofiltration methods for treatment of diseases in a mammal
A hemofiltration system and method to treat an Inflammatory Mediator Related Disease in a mammal, including chronic and acute diseases, include a hemofilter and an adsorptive device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal ...
11/06/2007
7264724Fluid path control element for fluid processing module
A fluid path control element which when stacked alternatively with a fluid porous sheet can be formed into a filtration module. The fluid path control element comprises a porous membrane having sealed to a portion of its periphery a thermoplastic element that extend...
09/04/2007
7204958Extracorporeal blood circuit air removal system and method
A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a blood ...
04/17/2007
7201870Active air removal system operating modes of an extracorporeal blood circuit
A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous...
04/10/2007
7198751Disposable, integrated, extracorporeal blood circuit
A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous...
04/03/2007
7189352Extracorporeal blood circuit priming system and method
A disposable, integrated extracorporeal blood circuit employed during cardiopulmonary bypass surgery performs gas exchange, heat transfer, and microemboli filtering functions in a way as to conserve volume, to reduce setup and change out times, to eliminate a venous...
03/13/2007
7181927Primary heat exchanger for patient temperature control
A system for exchanging heat with primary coolant flowing through an intravascular catheter or externally-applied pad to warm or cool a patient. A secondary heat transfer element can be engaged with a primary heat transfer element and is not grounded when the primar...
02/27/2007
7172727Apparatus for blood oxygenation
An apparatus and method for blood oxygenation are provided. The apparatus includes a chamber having a first inlet to receive a fluid, e.g., physiologic saline; a second inlet to receive a gas, e.g., oxygen, from a gas supply; and an outlet coupled to a capillary ass...
02/06/2007
7144443Axial transfer line degassing
An elongated flow-through degassing apparatus includes an elongated gas and liquid impermeable outer tube and one or more gas-permeable, liquid-impermeable elongated inner tubes extending within the outer tube and at least partially through a chamber defined within ...
12/05/2006
7129082Bio-reactor device
The invention provides a bio-reactor device and a method of cultivating live cells. The device comprises a holder which contains a matrix of porous foam material in whose interior live cells are anchored, the device comprising also a liquid contained in the holder. ...
10/31/2006
7122151Membrane apparatus with enhanced mass transfer, heat transfer and pumping capabilities via active mixing
A combination mass transfer and pump apparatus, which in a single step actively mixes a first mass and a second mass and simultaneously pumps one of the first mass and the second mass through the apparatus. The combination mass transfer and pump apparatus substantia...
10/17/2006
7122027Implantable medical device with controllable gaseous agent release system
The present invention generally relates to medical devices. Specifically, the invention pertains to implantable medical devices that produces gaseous agents from precursors and releases them into the body. More specifically, the invention provides for the controlled...
10/17/2006
7101518Plasma disinfection system
Disclosed is an apparatus for supplying liquid for use in a plasma disinfection system. The apparatus supplies liquid for generating plasma to a reaction chamber (1) to sterilize and disinfect an item wrapped in a packaging material (10) in the reactio...
09/05/2006
7097690Apparatus and method for removing gasses from a liquid
Medical devices for removing gasses, such as gas bubbles and/or dissolved gasses, from a liquid to be delivered to a patient, and methods of use and making of such devices. In at least some embodiments, a gas permeable membrane material is used in the construction o...
08/29/2006
7090792Method of selectively shaping hollow fibers of heat exchange catheter
A group of multiple hollow fibers may be shaped to introduce angular divergence among the fibers, or to introduce a selected longitudinal oscillation into the fibers. In one shaping technique, the fibers are held in parallel while upper and lower crimping assemblies...
08/15/2006
7067307Bioartificial device for the storage, cultivation and/or multiplication of cells
The bioartificial reactor has a reactor vessel. A cell culture chamber in the reactor, in particular for liver cells, is divided off from a flow chamber for a nutritive medium and from a flow chamber for plasma and blood by semipermeable walls. At least one flow cha...
06/27/2006
7029584Rotating filter
A device for filtering liquids comprising two shafts which are parallel to each other or at an acute angle wherein each shaft carries a stack of disks that extend perpendicularly to the shaft axis and are rotated thereby. The disks of one stack are engaged in the in...
04/18/2006
7008535Apparatus for oxygenating wastewater
A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo...
03/07/2006
6998093Fluid oxygenator with access port
A fluid oxygenating apparatus is provided which includes a housing defining a chamber, a core positioned within the chamber including a fluid channel formed therein, and a bubble release port communicating with the outlet end of the channel. Fluid is flowed through ...
02/14/2006
6994824Artificial cardiopulmonary circuit system
To provide an artificial cardiopulmonary circuit system having high heat resistance and excellent blood compatibility. The artificial cardiopulmonary circuit system includes a hollow fiber membrane oxygenator including a plurality of porous hollow fiber membranes fo...
02/07/2006
6978688Semipermeable membrane-based sampling systems
The device and methods relate to a sampling device for obtaining samples of analytes in a difficult-to-reach sampling location, such as below ground or underwater, and transporting the sample to an accessible delivery or collection site. The sampling device comprise...
12/27/2005
6974435Method for enriching a bodily fluid with a gas
A system utilizes an oxygenation device to generate a gas-enriched physiologic fluid and to combine it with a bodily fluid to create a gas-enriched bodily fluid. The oxygenation device may take the form of a disposable cartridge, which is placed within an enclosure....
12/13/2005
6936221Method of forming gas-enriched fluid
A method for forming a gas-enriched fluid is provided. The method includes a step of providing a mixing chamber having a first inlet, a second inlet, and an outlet. A first fluid is delivered into the mixing chamber via the first inlet and flows vertically. A second...
08/30/2005
6918887Venous filter for assisted venous return
The need for a venous reservoir in a heart-lung machine is obviated by using a vacuum-purged negative-pressure air filter in the venous return line ahead of the main blood pump. The purging vacuum for the venous air filter can also be used to purge air from the card...
07/19/2005
6913736Metal gas separation membrane module design
An improved metal gas separation membrane for separating hydrogen from a gas steam includes a quantity of metal particles that are bonded together to form a porous body. The porous body may have a porosity that increases from a first surface to an opposite second su...
07/05/2005
6902703Integrated sample-processing system
The invention provides an integrated sample-processing system and components thereof for preparing and/or analyzing samples. The components may include a transport module, a fluidics module, and an analysis module, among others. ...
06/07/2005
6858146Artificial liver apparatus and method
Artificial liver devices and methods for using the devices to purify a biological fluid are disclosed. The methods include the use of living hepatocytes (23) which are either unattached or attached to inert carriers and suspended in a cell culture medium whic...
02/22/2005
6821790Methods and apparatus for separation of biological fluids
A method of separating a cell-containing sample into a substantially cell-depleted portion, and a cell-containing portion comprising at least one of a stem cell, a lymphocyte, and a leukocyte comprises a step in which the sample is received in a vessel with at least...
11/23/2004
6524267Venous filter for assisted venous return
The need for a venous reservoir in a heart-lung machine is obviated by using a vacuum-purged negative-pressure air filter in the venous return line ahead of the main blood pump. The purging vacuum for the venous air filter can also be used to purge air fr...
02/25/2003
6508983Exchanger apparatus and method of manufacture
An exchanger and method for manufacturing the same are disclosed. In one embodiment, the exchanger crimps a hollow fiber bundle along a length of a cylindrical case in at least two radial positions. At least one crimp is between an inlet port and an outle...
01/21/2003
6503225Device for removal of gas bubbles and dissolved gasses in liquid
A device (10) for removal of gas bubbles and dissolves gasses from fluids delivered into a patient during medical procedures is disclosed. A housing (20) having a number of gas permeable hollow fibers (50) passing therethrough is provided. The infused flu...
01/07/2003
6503450Integrated blood oxygenator and pump system
Improvements to integrated blood pump/oxygenator having a rotating hollow fiber bundle assembly that both oxygenates and pumps blood are provided. An inner member arranged along a central axis of the device accelerates blood entering the fiber bundle to r...
01/07/2003
6495101Hollow fiber membrane oxygenator
A hollow fiber membrane oxygenator of external blood circulation type has a housing and a lot of porous hollow fiber membranes for gas transfer housed in the housing. In the oxygenator, blood flows along the outer side of the hollow fiber membranes, where...
12/17/2002
6468472Cleaning and decontaminating dialyzers by per-compound solutions
A composition for cleaning and decontaminating medical devices such as dialyzers. A per-compound oxidant, for example, hydrogen peroxide (H2 O2) and/or peracetic acid, is mixed with a buffer such as dipotassium hydrogen phosphate. Th...
10/22/2002
1              
 
Sign InRegister
Username  
Password   
forgot password?